JP6007398B2 - Air filter and manufacturing method thereof - Google Patents

Air filter and manufacturing method thereof Download PDF

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JP6007398B2
JP6007398B2 JP2011219012A JP2011219012A JP6007398B2 JP 6007398 B2 JP6007398 B2 JP 6007398B2 JP 2011219012 A JP2011219012 A JP 2011219012A JP 2011219012 A JP2011219012 A JP 2011219012A JP 6007398 B2 JP6007398 B2 JP 6007398B2
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fiber layer
fine fiber
base material
air
filter
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JP2013078709A (en
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加藤　務
務 加藤
貴義 山口
貴義 山口
美緒 織部
美緒 織部
慶太 高橋
慶太 高橋
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Panasonic Intellectual Property Management Co Ltd
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Description

本発明は、空気清浄装置または空気調和機などに組み込まれるエアフィルタおよびその製造方法に関する。 The present invention relates to an air filter incorporated in an air cleaning device or an air conditioner and a method for manufacturing the same .

従来のエアフィルタは、濾材部が、基材部と、この基材部へ送風される空気流の上流側面に設けた細繊維層とから形成した構成となっていた（例えば、特許文献１参照）。   A conventional air filter has a configuration in which a filter medium part is formed of a base material part and a fine fiber layer provided on an upstream side surface of an air flow blown to the base material part (see, for example, Patent Document 1). ).

特開２０１０−２７４１４４号公報JP 2010-274144 A

上記従来例における課題は、通気抵抗が増加するということであった。   The problem in the conventional example is that the ventilation resistance increases.

すなわち、濾材部が、基材部と、この基材部へ送風される空気流の上流側面に設けた細繊維層とから形成した構成となっていたので、この細繊維層によって目の大きさが小さくなり捕集効率は向上するが、通気抵抗が増加するものである。一方、仮に通気抵抗の増加を抑制するために目の大きさを大きくすると、捕集効率が低下するものである。   That is, since the filter medium part has a structure formed from the base material part and the fine fiber layer provided on the upstream side surface of the air flow blown to the base material part, the size of the eyes is reduced by the fine fiber layer. Is reduced and the collection efficiency is improved, but the ventilation resistance is increased. On the other hand, if the size of the eyes is increased in order to suppress an increase in ventilation resistance, the collection efficiency is lowered.

そこで本発明は、捕集効率を向上すると共に、通気抵抗の増加を抑制することを目的とするものである。   Therefore, the present invention aims to improve the collection efficiency and suppress an increase in ventilation resistance.

そしてこの目的を達成するために本発明のエアフィルタは、プリーツ形状の濾材部と、この濾材部をプリーツ形状に保持する形状保持部とを設けたエアフィルタであって、前記濾材部は、第１基材部の空気流の下流側面に３００〜８００ｎｍ（８００ｎｍは除く）の繊維径の繊維を塗布して形成した第１細繊維層と、第２基材部の空気流の上流側面に１００〜２００ｎｍの繊維径の繊維を塗布して形成した第２細繊維層とを備え、第１基材部の空気流の下流側の谷部における第１細繊維層の密集部と山部の先端部における第２細繊維層の疎部分が重なるものであり、これにより初期の目的を達成するものである。
また、本発明のエアフィルタの製造方法は、プリーツ形状の濾材部と、この濾材部をプリーツ形状に保持する形状保持部とを設けたエアフィルタの製造方法であって、前記濾材部は、第１基材部の空気流の下流側面に３００〜８００ｎｍ（８００ｎｍは除く）の繊維径の繊維を塗布して形成した第１細繊維層と、第２基材部の空気流の上流側面に１００〜２００ｎｍの繊維径の繊維を塗布して形成した第２細繊維層とを備え、前記第１細繊維層と前記第２細繊維層を直接張り合わせて積層したというものであり、これにより初期の目的を達成するものである。 In order to achieve this object, the air filter of the present invention is an air filter provided with a pleated filter medium part and a shape holding part for holding the filter medium part in a pleat shape, and the filter medium part includes A first fine fiber layer formed by applying fibers having a fiber diameter of 300 to 800 nm (excluding 800 nm) to the downstream side surface of the air flow of one base material portion, and 100 on the upstream side surface of the air flow of the second base material portion. A second fine fiber layer formed by applying a fiber having a fiber diameter of ˜200 nm, and a dense portion of the first fine fiber layer and a tip of the peak portion in a valley portion on the downstream side of the air flow of the first base material portion The sparse part of the second fine fiber layer in the part overlaps, thereby achieving the initial purpose.
In the method of manufacturing the air filter of the present invention includes a filter media portion of the pleated shape, a manufacturing method of an air filter provided with a shape Joho sandwiching member for holding the filter media unit in a pleat shape, the filter media unit The first fine fiber layer formed by applying fibers having a fiber diameter of 300 to 800 nm (excluding 800 nm) to the downstream side surface of the air flow of the first base material portion, and the upstream side surface of the air flow of the second base material portion And a second fine fiber layer formed by applying a fiber having a fiber diameter of 100 to 200 nm, and the first fine fiber layer and the second fine fiber layer are directly laminated and laminated. To achieve the initial objectives.

以上のように本発明は、捕集効率を向上すると共に、通気抵抗の増加を抑制することが出来るものである。   As described above, the present invention can improve the collection efficiency and suppress an increase in ventilation resistance.

すなわち、プリーツ形状の濾材部と、この濾材部をプリーツ形状に保持する形状保持部とを設け、濾材部は、基材部と、この基材部へ送風される空気流の上流側面に設けた細繊維層とから形成したので、細繊維層によって目の大きさが小さくなり捕集効率が向上すると共に、濾材部をプリーツ形状にすることにより、細繊維層の表面積が増加するので通気抵抗の増加を抑制することができるものである。   That is, a pleat-shaped filter medium part and a shape holding part for holding the filter medium part in a pleated shape are provided, and the filter medium part is provided on the upstream surface of the base material part and the air flow blown to the base material part. Since the fine fiber layer reduces the size of the eyes and improves the collection efficiency, and the filter medium part is pleated, the surface area of the fine fiber layer is increased, so that the ventilation resistance is reduced. The increase can be suppressed.

ところが、濾材部をプリーツ形状に折り曲げると、基材部の空気流の上流側の山部における先端部の細繊維層が引っ張られ、細繊維層が切れる場合がある。これにより、基材部の山部における先端部での捕集効率が低下するものである。   However, when the filter medium part is bent into a pleat shape, the fine fiber layer at the tip of the peak part on the upstream side of the air flow of the base part may be pulled, and the fine fiber layer may be cut. Thereby, the collection efficiency in the front-end | tip part in the peak part of a base material part falls.

そこで、第１基材部と第２基材部にそれぞれ細繊維を塗布して第１細繊維層および第２細繊維層を形成すると共に、第１細繊維層と第２細繊維層を直接張り合わせる様にするものである。 Therefore, fine fibers are applied to the first base material portion and the second base material portion to form the first fine fiber layer and the second fine fiber layer , and the first fine fiber layer and the second fine fiber layer are directly attached. It is intended to be pasted together.

これにより、濾材部をプリーツ形状に折り曲げることにより、第２基材部の空気流の上流側の山部における先端部の第２細繊維層が引っ張られても、第１基材部の第１細繊維層は谷側に形成されており、第１細繊維層が圧縮されて、細繊維層がすべて引っ張られ切れることを抑制できる。 Thereby, even if the 2nd fine fiber layer of the front-end | tip part in the peak part of the upstream of the air flow of a 2nd base material part is pulled by bend | folding a filter medium part in a pleat shape, the 1st base material part 1st The fine fiber layer is formed on the valley side, and it can be suppressed that the first fine fiber layer is compressed and the fine fiber layer is completely pulled out.

結果として、捕集効率を向上すると共に、通気抵抗の増加を抑制することが出来るのである。   As a result, the collection efficiency can be improved and an increase in ventilation resistance can be suppressed.

本発明の実施の形態１を示す斜視図The perspective view which shows Embodiment 1 of this invention 同エアフィルタの積層前の断面図Cross-sectional view of the air filter before lamination 同エアフィルタの断面図Cross section of the air filter 同エアフィルタを装着した空気清浄機の概略図Schematic of an air cleaner equipped with the same air filter

（実施の形態１）
以下本発明の実施の形態１を添付図面を用いて説明する。 (Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to the accompanying drawings.

図１に示すように、このエアフィルタ３は、プリーツ形状の濾材部１０と、この濾材部１０をプリーツ形状に保持する形状保持部１１とから形成している。   As shown in FIG. 1, the air filter 3 is formed of a pleated filter medium part 10 and a shape holding part 11 for holding the filter medium part 10 in a pleat shape.

濾材部１０は、平板形状の濾材部１０をプリーツ形状、すなわち波形に折り曲げたものである。形状保持部１１は、ロの字形状の枠部１２と、この枠部１２と濾材部１０との間に設けた接着部材１３とから形成している。つまり、枠部１２は、プリーツ形状の濾材部１０周縁に位置し、接着部材１３によって、プリーツ形状の濾材部１０を枠部１２に固定している。   The filter medium part 10 is obtained by bending a flat plate-shaped filter medium part 10 into a pleated shape, that is, a corrugated shape. The shape holding part 11 is formed from a square-shaped frame part 12 and an adhesive member 13 provided between the frame part 12 and the filter medium part 10. That is, the frame portion 12 is positioned on the periphery of the pleated filter medium portion 10, and the pleated filter medium portion 10 is fixed to the frame portion 12 by the adhesive member 13.

図２および図３に示すように、濾材部１０は、第１基材部１４と、この第１基材部１４へ送風される空気流の下流側面に設けた第１細繊維層１５とを備えている。   As shown in FIGS. 2 and 3, the filter medium part 10 includes a first base material part 14 and a first fine fiber layer 15 provided on the downstream side surface of the air flow blown to the first base material part 14. I have.

また、第２基材部１７と、この第２基材部１７へ送風される空気流の上流側面に設けた第２細繊維層１８とを備えている。   Moreover, the 2nd base material part 17 and the 2nd fine fiber layer 18 provided in the upstream side surface of the airflow ventilated to this 2nd base material part 17 are provided.

第１基材部１４および第２基材部１７の１例は、材質は、ガラス、樹脂である不織布である。第１細繊維層１５および第２細繊維層１８は、直径がナノメーターである細繊維によって形成されている。具体的には、それぞれ１本の細繊維が絡み合って第１細繊維層１５および第２細繊維層１８を形成するものである。   An example of the 1st base material part 14 and the 2nd base material part 17 is a nonwoven fabric whose material is glass and resin. The first fine fiber layer 15 and the second fine fiber layer 18 are formed of fine fibers having a diameter of nanometer. Specifically, a single fine fiber is entangled with each other to form the first fine fiber layer 15 and the second fine fiber layer 18.

本実施形態における特徴は、エアフィルタ３の第１細繊維層１５および第２細繊維層１８にある。つまり、第１基材部１４の空気流の下流側の谷部における第１細繊維層１５の密集部と先端部１６の第２細繊維層１８の疎部分が、重なることを特徴とする点である。   The feature in the present embodiment is in the first fine fiber layer 15 and the second fine fiber layer 18 of the air filter 3. That is, the dense portion of the first fine fiber layer 15 and the sparse portion of the second fine fiber layer 18 at the tip portion 16 overlap each other in the valley portion on the downstream side of the air flow of the first base material portion 14. It is.

すなわち、濾材部１０をプリーツ形状に折り曲げると、第２基材部１７の空気流の上流側の山部の第２細繊維層１８が引っ張られ、細繊維層が切れる場合がある。これにより、基材部の山部における先端部での捕集効率が低下する可能性がある。   That is, when the filter medium part 10 is bent into a pleat shape, the second fine fiber layer 18 at the peak portion on the upstream side of the air flow of the second base material part 17 may be pulled, and the fine fiber layer may be cut. Thereby, the collection efficiency in the front-end | tip part in the peak part of a base material part may fall.

そこで、第１基材部１４と第２基材部１７にそれぞれ細繊維を塗布して第１細繊維層１５および第２細繊維層１８を形成すると共に、第１細繊維層１５と第２細繊維層１８を直接張り合わせる様にすることで、濾材部１０をプリーツ形状に折り曲げることにより、第２基材部の空気流の上流側の山部における先端部の第２細繊維層が引っ張られても、第１基材部１４の第１細繊維層１５は谷側に形成されており、前記第１細繊維層が圧縮されて、細繊維層がすべて引っ張られ切れることを抑制できる。 Accordingly, fine fibers are respectively applied to the first base material portion 14 and the second base material portion 17 to form the first fine fiber layer 15 and the second fine fiber layer 18, and the first fine fiber layer 15 and the second fine fiber layer 18 are formed . By directly laminating the fine fiber layer 18, the filter medium part 10 is bent into a pleated shape, so that the second fine fiber layer at the tip of the peak part on the upstream side of the air flow of the second base material part is pulled. be, first fine fiber layer 15 of the first substrate portion 14 is formed in a valley, the first fine fiber layer is compressed, the fine fiber layer can be prevented that all cut - pulled.

結果として、捕集効率を向上すると共に、通気抵抗の増加を抑制することが出来るのである。   As a result, the collection efficiency can be improved and an increase in ventilation resistance can be suppressed.

また、濾材部１０は、第１基材部１４の空気流の下流側に約３００〜８００ｎｍの繊維径である第１細繊維層１５を備えており、第２基材部１７の空気流の上流側に約１００〜２００ｎｍの繊維径である第２細繊維層１８を備えることで、タバコの煙や花粉などの粒子を比較的繊維径の大きい第１細繊維層１５に捕らえ、より微細な粒子を第２細繊維層１８で捕らえることで、濾材部１０の寿命を延長することができる。   In addition, the filter medium part 10 includes a first fine fiber layer 15 having a fiber diameter of about 300 to 800 nm on the downstream side of the air flow of the first base material part 14, and the air flow of the second base material part 17. By providing the second fine fiber layer 18 having a fiber diameter of about 100 to 200 nm on the upstream side, particles such as tobacco smoke and pollen are captured by the first fine fiber layer 15 having a relatively large fiber diameter, and the finer layer is finer. By capturing the particles with the second fine fiber layer 18, the life of the filter medium part 10 can be extended.

図４に示すように、本実施形態のエアフィルタを装着した空気清浄装置は、本体ケース１内に送風手段２とエアフィルタ３とを備えている。   As shown in FIG. 4, the air purifier equipped with the air filter of this embodiment includes a blower 2 and an air filter 3 in a main body case 1.

本体ケース１は、略縦長箱形状で、この本体ケース１の前面側側面部に、略四角形状の吸気口４を設け、本体ケース１の天面部に、略四角形状の排気口５を備えている。この排気口５には、風向ルーバー６を設けている。   The main body case 1 has a substantially vertically long box shape. The main body case 1 is provided with a substantially square-shaped intake port 4 on the front side surface portion thereof, and the main body case 1 is provided with a substantially square-shaped exhaust port 5. Yes. The exhaust port 5 is provided with a wind direction louver 6.

送風手段２は、本体ケース１の吸気口４と、排気口５との間の風路に設けられ、スクロール形状のケーシング７と、このケーシング７内に設けられた遠心送風ファンである羽根８と、この羽根８を回転させる電動機９とから形成している。エアフィルタ３は、本体ケース１の吸気口４に位置している。送風手段２によって、室内の空気を吸気口４から本体ケース１内に吸気した空気は、エアフィルタ３を介して排気口５へと送風するものである。つまり、室内の空気をエアフィルタ３で清浄して、室内へ送風するものとなる。   The air blowing means 2 is provided in an air passage between the air inlet 4 and the air outlet 5 of the main body case 1, and has a scroll-shaped casing 7 and a blade 8 which is a centrifugal air fan provided in the casing 7. And the electric motor 9 that rotates the blade 8. The air filter 3 is located at the air inlet 4 of the main body case 1. Air blown into the body case 1 from the air inlet 4 by the air blowing means 2 is sent to the air outlet 5 via the air filter 3. That is, the indoor air is cleaned by the air filter 3 and blown into the room.

以上のように本発明は、捕集効率を向上すると共に、通気抵抗の増加を抑制することが出来るものである。   As described above, the present invention can improve the collection efficiency and suppress an increase in ventilation resistance.

１ 本体ケース
２ 送風手段
３ エアフィルタ
４ 吸気口
５ 排気口
６ 風向ルーバー
７ ケーシング
８ 羽根
９ 電動機
１０ 濾材部
１１ 形状保持部
１２ 枠部
１３ 接着部材
１４ 第１基材部
１５ 第１細繊維層
１６ 先端部
１７ 第２基材部
１８ 第２細繊維層 DESCRIPTION OF SYMBOLS 1 Main body case 2 Air blowing means 3 Air filter 4 Intake port 5 Exhaust port 6 Wind direction louver 7 Casing 8 Blade 9 Electric motor 10 Filter material part 11 Shape holding part 12 Frame part 13 Adhesive member 14 1st base material part 15 1st fine fiber layer 16 Tip portion 17 Second base material portion 18 Second fine fiber layer

Claims (2)

プリーツ形状の濾材部と、この濾材部をプリーツ形状に保持する形状保持部とを設けたエアフィルタであって、前記濾材部は、第１基材部の空気流の下流側面に３００〜８００ｎｍ（８００ｎｍは除く）の繊維径の繊維を塗布して形成した第１細繊維層と、第２基材部の空気流の上流側面に１００〜２００ｎｍの繊維径の繊維を塗布して形成した第２細繊維層とを備え、第１基材部の空気流の下流側の谷部における第１細繊維層の密集部と山部の先端部における第２細繊維層の疎部分が重なるエアフィルタ。 An air filter provided with a pleat-shaped filter medium part and a shape holding part for holding the filter medium part in a pleat shape, the filter medium part being 300 to 800 nm on the downstream side of the air flow of the first base material part ( A first fine fiber layer formed by applying fibers having a fiber diameter of 800 nm (excluding 800 nm) and a second fine fiber layer formed by applying fibers having a fiber diameter of 100 to 200 nm on the upstream side surface of the air flow of the second base material portion. An air filter comprising a fine fiber layer, wherein a dense portion of the first fine fiber layer in a valley portion on the downstream side of the air flow of the first base material portion and a sparse portion of the second fine fiber layer at a tip portion of the peak portion overlap. プリーツ形状の濾材部と、この濾材部をプリーツ形状に保持する形状保持部とを設けたエアフィルタの製造方法であって、前記濾材部は、第１基材部の空気流の下流側面に３００〜８００ｎｍ（８００ｎｍは除く）の繊維径の繊維を塗布して形成した第１細繊維層と、第２基材部の空気流の上流側面に１００〜２００ｎｍの繊維径の繊維を塗布して形成した第２細繊維層とを備え、前記第１細繊維層と前記第２細繊維層を直接張り合わせて積層したエアフィルタの製造方法。
A filter media portion of the pleated shape, a manufacturing method of an air filter provided with a shape Joho sandwiching member for holding the filter media unit in a pleat shape, the filter media unit, downstream side of the air flow of the first substrate portion The first fine fiber layer formed by applying fibers having a fiber diameter of 300 to 800 nm (excluding 800 nm) and the fiber having a fiber diameter of 100 to 200 nm are applied to the upstream side of the air flow of the second base material portion. A method for producing an air filter comprising: a second fine fiber layer formed by attaching the first fine fiber layer and the second fine fiber layer directly to each other.
JP2011219012A 2011-10-03 2011-10-03 Air filter and manufacturing method thereof Expired - Fee Related JP6007398B2 (en)

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